Vertical exhaust type sealing closure for sealed container

Abstract

This invention relates to a vertical exhaust type sealing closure for sealed container, comprising: a closure body and a chute seat provided in the axial direction thereof; an air plug provided in the chute seat; a piston provided in the chute seat and above the air plug as well, an operating portion being combined at the upper end of the piston; when the operating portion is grasped to conduct continuous up-to-down reciprocating motion of the piston, opening and closing action of the air plug can be produced so as to extract the air contained in the sealed container.

1 . A vertical exhaust type sealing closure for sealed container, comprising:
 a closure body having a chute seat provided in the axial direction thereof, a plurality of vent holes being provided on the bottom surface of said chute seat, a through hole penetrating said closure body being provided for housing a pressure relief element;   an air plug disposed within said chute seat to cover the vent holes, which control flow direction of air by the action of a piston; and   a piston conducting reciprocating movement in up-and-down direction within said chute seat.   
     
     
         2 . A vertical exhaust type sealing closure for sealed container as claimed in  claim 1 , wherein said piston has a hand grip attached thereto. 
     
     
         3 . A vertical exhaust type sealing closure for sealed container as claimed in  claim 1 , wherein said sealing closure further comprises a partition panel mounted within the chute seat and located above said air plug, a plurality of perforations being provided on said partition panel. 
     
     
         4 . A vertical exhaust type sealing closure for sealed container as claimed in  claim 1 , wherein a shielding cover is combined on the outer skirt of the bottom of said chute seat, a gap being formed between the inner surface of said shielding cover and the outer surface of said chute seat for the passing in or out of gas. 
     
     
         5 . The vertical exhaust type sealing closure for sealed container as claimed in  claim 4 , wherein said gap is formed by the provision of at least one communicating groove on the inner surface of said shielding cover. 
     
     
         6 . A vertical exhaust type sealing closure for sealed container as claimed in  claim 1 , wherein an air plug has a diaphragm to cover the vent holes provided on the bottom surface of the chute seat.